I'd say :buy it from compusa. For $6 more, you get retail box with software (adeptec EZCD which not too good,though),1 blank CD-r and 1 highspeed cd-rw disc. if you purchase online, you need to spend $10 for Nero,too (so, it is about $156).. well, no gurantee for getting 512EB model, though. BUT, HEY, you can also exchange the drive locally and give it a try again.. I think the chance is quite high... (many people already got burnproof model including me.. some got one with 2.0A firmware and some even got 2.0B furmware....)
Chien